.300 Win Mag Ammo Prices & Cost Per Round
1,096 listings tracked · 853 in stock, across 14 retailers. Retailer feeds are checked every 15 minutes.
85¢/rd
Lowest cost per round →
$2.75/rd
Median cost per round across in-stock listings
$16.99
Cheapest Box →
Kentucky Gun Co
FIOCCHI Knock Down Enviro Shield 300 Win Mag 165 gr Hollow Point Ammunition | 20 Rounds$47.99
Out of stock$2.40/rd · 20 rds
$61.93 shipped · $13.94 shipping
GrabAGun
Fiocchi Exacta Brass .300 Win Mag 190-Grain 20-Rounds SMKHPBT$48.49
Out of stock$2.43/rd · 20 rds
Shipping calculated in cart
GrabAGun
Fiocchi Exacta Brass .300 Win Mag 190-Grain 20-Rounds SMKHPBT$48.49
Out of stock$2.43/rd · 20 rds
Shipping calculated in cart
Brownells
Winchester Power Max Bonded 300 Winchester Magnum Ammo - 300 Winchester Magnum 150gr Protected Hollow Point 20/Box$48.99
Out of stock$2.45/rd · 20 rds
Shipping calculated in cart
Brownells
Winchester Power Max Bonded 300 Winchester Magnum Ammo - 300 Winchester Magnum 180gr Protected Hollow Point 20/Box$48.99
Out of stock$2.45/rd · 20 rds
Shipping calculated in cart
E-Commerce Arms · 4 offers
Federal P300WSS1 Premium 300WinMag 180gr Swift Scirocco II 20 Per Box/10 Case$49.57
Out of stock$2.48/rd · 20 rds
Shipping calculated in cart
GrabAGun
Hornady Match Brass .300 Win Mag 195-Grain 20-Rounds ELD-M$49.69
Out of stock$2.49/rd · 20 rds
Shipping calculated in cart
GrabAGun
Hornady Match Brass .300 Win Mag 195-Grain 20-Rounds ELD-M$49.69
Out of stock$2.49/rd · 20 rds
Shipping calculated in cart
Kentucky Gun Co
NORMA AMMO EvoStrike Lead Free 300 Win Mag 139gr Hollow Point Brass Rifle Ammunition | 20 Rounds$49.99
Out of stock$2.50/rd · 20 rds
$63.93 shipped · $13.94 shipping
Brownells
REMINGTON - CORE-LOKT 300 WIN MAG POINTED SOFT POINT CORE LOKT RIFLE AMMO$49.99
Out of stock$2.50/rd · 20 rds
Shipping calculated in cart
Brownells
WINCHESTER - POWER POINT 300 WINCHESTER MAGNUM RIFLE AMMO$49.99
Out of stock$2.50/rd · 20 rds
Shipping calculated in cart
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GrabAGun
Hornady Precision Hunter 200 Grain ELD-X Brass .300 Win 20Rds$50.69
Out of stock$2.53/rd · 20 rds
Shipping calculated in cart
No image
GrabAGun
Hornady Precision Hunter 200 Grain ELD-X Brass .300 Win 20Rds$50.69
Out of stock$2.53/rd · 20 rds
Shipping calculated in cart
Kentucky Gun Co
BROWNING BXR Deer 300 Win Mag 155gr Rifle Ammunition | 20 Rounds$50.99
Out of stock$2.55/rd · 20 rds
$64.93 shipped · $13.94 shipping
E-Commerce Arms · 5 offers
WINCHESTER COPPER IMPACT 300WM 180G LF 20RD BX 200RD CASE$51.64
Out of stock$2.58/rd · 20 rds
Shipping calculated in cart
Kentucky Gun Co · 2 offers
WINCHESTER AMMO 300 WM 180Gr Accu-Bond 20rd SU$52.99
Out of stock$2.65/rd · 20 rds
$66.93 shipped · $13.94 shipping
GrabAGun
Federal Premium Vital-Shok Nickel Plated Brass .300 Win Mag 165 Gr Trophy Bonded Tip 20 Rounds per Box$52.99
Out of stock$2.65/rd · 20 rds
Shipping calculated in cart
GrabAGun
Federal Premium Vital-Shok Nickel Plated Brass .300 Win Mag 165 Gr Trophy Bonded Tip 20 Rounds per Box$52.99
Out of stock$2.65/rd · 20 rds
Shipping calculated in cart
Bereli
Browning BXC .300 Winchester Magnum Ammunition 20 Rounds BXC 185 Grains B192203001$54.99
Out of stock$2.75/rd · 20 rds
Free shipping
Brownells
HORNADY - SUPERFORMANCE® 300 WIN MAG SST® POLYMER TIPPED RIFLE AMMO$54.99
Out of stock$2.75/rd · 20 rds
Shipping calculated in cart
GrabAGun
Federal Premium Nickel Plated Brass .300 Win Mag Trophy Copper 165 Gr 20 per Box$55.29
Out of stock$2.76/rd · 20 rds
Shipping calculated in cart
GrabAGun
Federal Premium Nickel Plated Brass .300 Win Mag Trophy Copper 165 Gr 20 per Box$55.29
Out of stock$2.76/rd · 20 rds
Shipping calculated in cart
GrabAGun
Federal Premium Nickel Plated Brass .300 Win Mag 165 Grain 20-Rounds TSX$56.19
Out of stock$2.81/rd · 20 rds
Shipping calculated in cart
GrabAGun
Federal Premium Nickel Plated Brass .300 Win Mag 165 Grain 20-Rounds TSX$56.19
Out of stock$2.81/rd · 20 rds
Shipping calculated in cart
.300 Win Mag Cost Per Round History
.300 Win Mag Price by Month
| Month | Median cost per round | Lowest cost per round | Change |
|---|---|---|---|
| November 2026 | $2.72/rd | 75¢/rd | +3.9% |
| October 2026 | $2.62/rd | 75¢/rd | — |
| September 2026 | $2.62/rd | $1.15/rd | -0.8% |
| August 2026 | $2.64/rd | $1.07/rd | +1.7% |
| July 2026 | $2.60/rd | $1.07/rd | +1.6% |
| June 2026 | $2.56/rd | $1.07/rd | -1.6% |
| May 2026 | $2.60/rd | $1.15/rd | -5.5% |
| April 2026 | $2.75/rd | $1.50/rd | — |
Median and lowest observed cost per round per calendar month, from in-stock listings tracked across supported retailers.
Want the whole market instead of one caliber? The Ammo Price Index chains these monthly medians across a fixed 12-caliber basket into a single month-over-month benchmark.
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Frequently Asked Questions
What is a good cost per round for .300 Win Mag?
The best cost per round we're currently tracking for .300 Win Mag is $0.85/round. A typical CPR across 591 tracked offers is $2.75/round. Prices vary by brand, grain weight, and retailer.
Is .300 Win Mag ammo cheap right now?
The typical cost per round for .300 Win Mag is $2.75. Check our CPR trend chart above to see if current prices are above or below the 30-day average. Set a price alert to get notified when prices drop.
Where can I find the cheapest .300 Win Mag ammo?
Based on our tracking across 14 retailers, the cheapest .300 Win Mag ammo starting at $16.99/box. We compare prices from Ammunition Depot, BattleHawk Armory, Brownells, E-Commerce Arms and more.
Other Calibers
.17 HMR
.22 LR
.22 WMR
.243 Win
.270 Win
.300 Win Mag
.308 Winchester
.338 Lapua
.350 Legend
.357 Magnum
.38 Special
.380 ACP
.40 S&W
.410 Bore
.44 Magnum
.45
10mm
12 Gauge
20 Gauge
28 Gauge
30-06
300 Blackout
5.56 / .223
5.7x28mm
6.5 Grendel
6.5mm Creedmoor (6.5x48mm)
7.62x39
7.62x51 NATO
7mm Rem Mag
9mm
Compare .300 Win Mag ammo by cost per round. Open any product to see its full price history or set a price alert.